Back to results
US 2019/0157647 A1Published application
Polyolefin micro-porous film, separator film for power-storage device, and power-storage device
AssigneeUbe Industries, Ltd.
InventorsToru KIDOSAKI, Ryo SAKIMOTO, Kenji KAWABATA
Life of this patent
Estimating the term…
Abstract
A polyolefin micro-porous film containing a polypropylene resin, in which a meltdown temperature of the polyolefin micro-porous film is 195° C. to 230° C. A weight-average molecular weight of the polypropylene resin is 500,000 to 800,000. Furthermore, a molecular weight distribution of the polypropylene resin is 7.5 to 16.
Claims22
A polyolefin micro-porous film, comprising:
- a polypropylene resin,
- wherein a meltdown temperature of the polyolefin micro-porous film is 195° C. to 230° C.
(canceled)
11-18. (canceled)
Dependencies are inferred from the claim text.